1b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines/* 2b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * Copyright 2011, The Android Open Source Project 3b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * 4b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * Licensed under the Apache License, Version 2.0 (the "License"); 5b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * you may not use this file except in compliance with the License. 6b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * You may obtain a copy of the License at 7b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * 8b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * http://www.apache.org/licenses/LICENSE-2.0 9b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * 10b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * Unless required by applicable law or agreed to in writing, software 11b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * distributed under the License is distributed on an "AS IS" BASIS, 12b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * See the License for the specific language governing permissions and 14b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines * limitations under the License. 15b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines */ 16b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines 17b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines#ifndef TRAITS_H 18b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines#define TRAITS_H 19b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines 20b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines#include <stddef.h> 21b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines 22b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hinestemplate <typename Type> 23b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hinesstruct TypeTraits { 24b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hinesprivate: 25b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines struct AlignmentTest { 26b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines char pending; 27b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines Type element; 28b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines }; 29b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines 30b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hinespublic: 31b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines enum { size = sizeof(Type) }; 32b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines enum { align = offsetof(AlignmentTest, element) }; 33b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines}; 34b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines 35b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines#define TYPE_TRAITS_SPECIALIZE(TYPE, SIZE, ALIGN) \ 36b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hinestemplate <> \ 37b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hinesstruct TypeTraits<TYPE> { \ 38b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines enum { size = SIZE }; \ 39b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines enum { align = ALIGN }; \ 40b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines}; 41b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines 42b53c8a59e6f21ed36a0c3d9d4ce5834d4cc3c298Stephen Hines#endif // TRAITS_H 43